Mashpedia is an interesting service that matches reference articles from Wikipedia to materials from other sources like YouTube, Flickr, Twitter, Digg, and the web in general. The purpose of drawing materials from multiple sources is to provide users with a comprehensive view of news stories and reference topics.
DawsonITE is a blog devoted to Educational Technology. It's compiled by Rafael Scapin, Coordinator of Educational Technology at Dawson College in Montreal (Canada).